129-600: The United Kingdom – United States of America Agreement ( UKUSA , / j uː k uː ˈ s ɑː / yoo-koo- SAH ) is a multilateral agreement for cooperation in signals intelligence between Australia , Canada , New Zealand , the United Kingdom , and the United States . The alliance of intelligence operations is also known as the Five Eyes . In classification markings this is abbreviated as FVEY, with
258-606: A "Commonwealth of Nations". Conferences of British and colonial prime ministers occurred periodically from the first one in 1887 , leading to the creation of the Imperial Conferences in 1911. The Commonwealth developed from the imperial conferences. A specific proposal was presented by Jan Smuts in 1917 when he coined the term "the British Commonwealth of Nations" and envisioned the "future constitutional relations and readjustments in essence" at
387-601: A Commonwealth country affords benefits in some member countries, particularly in the United Kingdom , and Commonwealth countries are represented to one another by high commissions rather than embassies. The Commonwealth Charter defines their shared values of democracy , human rights and the rule of law , as promoted by the quadrennial Commonwealth Games . A majority of Commonwealth countries are small states , with small island developing states constituting almost half its membership. Queen Elizabeth II , in her address to Canada on Dominion Day in 1959, pointed out that
516-426: A central point, or perhaps to a distributed system in which all participate, such that the information can be correlated and a location computed. Modern SIGINT systems, therefore, have substantial communications among intercept platforms. Even if some platforms are clandestine, there is still a broadcast of information telling them where and how to look for signals. A United States targeting system under development in
645-540: A combined gross domestic product of over $ 9 trillion, 78% of which is accounted for by the four largest economies: India ($ 3.737 trillion), United Kingdom ($ 3.124 trillion), Canada ($ 1.652 trillion), and Australia ($ 1.379 trillion). In 1997 the Commonwealth Heads of Government agreed that, to become a member of the Commonwealth, an applicant country should, as a rule, have had
774-615: A confirmation of earlier disclosures about the UK-US espionage alliance. For example, the British newspaper The Independent reported back in 1996 that the US National Security Agency "taps UK phones" at the request of the British intelligence agency MI5 , thus allowing British agents to evade restrictive limitations on domestic telephone tapping. The mutual surveillance and sharing of information between allies of
903-472: A confirmation, followed by observation of artillery fire, may identify an automated counterbattery fire system. A radio signal that triggers navigational beacons could be a radio landing aid for an airstrip or helicopter pad that is intended to be low-profile. Patterns do emerge. A radio signal with certain characteristics, originating from a fixed headquarters, may strongly suggest that a particular unit will soon move out of its regular base. The contents of
1032-458: A different ECCM way to identify frequencies not being jammed or not in use. The earliest, and still common, means of direction finding is to use directional antennas as goniometers , so that a line can be drawn from the receiver through the position of the signal of interest. (See HF/DF .) Knowing the compass bearing, from a single point, to the transmitter does not locate it. Where the bearings from multiple points, using goniometry, are plotted on
1161-638: A former colony of the United Kingdom, but some have links to other countries, either exclusively or more directly (e.g., Bangladesh to Pakistan, Samoa to New Zealand, Papua New Guinea to Australia, and Singapore to Malaysia). Mozambique, in 1995, was the first country to join without such a constitutional connection, leading to the Edinburgh Declaration and the current membership guidelines. In 2009, Rwanda, formerly under Belgian and German rule, joined. Consideration for Rwanda's admission
1290-455: A fundamental founding document of the organisation, laid out that membership required dominionhood. The 1949 London Declaration ended this, allowing republican and indigenous monarchic members on the condition that they recognised King George VI as " Head of the Commonwealth ". In the wake of the wave of decolonisation in the 1960s, these constitutional principles were augmented by political, economic, and social principles. The first of these
1419-640: A lower level, German cryptanalysis, direction finding, and traffic analysis were vital to Rommel's early successes in the Western Desert Campaign until British forces tightened their communications discipline and Australian raiders destroyed his principle SIGINT Company. The United States Department of Defense has defined the term "signals intelligence" as: Being a broad field, SIGINT has many sub-disciplines. The two main ones are communications intelligence (COMINT) and electronic intelligence (ELINT). A collection system has to know to look for
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#17327728036801548-407: A map, the transmitter will be located at the point where the bearings intersect. This is the simplest case; a target may try to confuse listeners by having multiple transmitters, giving the same signal from different locations, switching on and off in a pattern known to their user but apparently random to the listener. Individual directional antennas have to be manually or automatically turned to find
1677-756: A matrix is created of boundless surveillance in which each partner aids in a division of roles. They exchanged information. And they worked together extensively. That applies to the British and the Americans, but also to the BND, which assists the NSA in its Internet surveillance. In 2013, Canadian federal judge Richard Mosley strongly rebuked the Canadian Security Intelligence Service ( CSIS ) for outsourcing its surveillance of Canadians to overseas partner agencies. A 51-page ruling says that
1806-509: A message written in the new ADFGVX cipher , which was cryptanalyzed by Georges Painvin . This gave the Allies advance warning of the German 1918 Spring Offensive . The British in particular, built up great expertise in the newly emerging field of signals intelligence and codebreaking (synonymous with cryptanalysis). On the declaration of war, Britain cut all German undersea cables. This forced
1935-648: A particular signal. "System", in this context, has several nuances. Targeting is the process of developing collection requirements : First, atmospheric conditions, sunspots , the target's transmission schedule and antenna characteristics, and other factors create uncertainty that a given signal intercept sensor will be able to "hear" the signal of interest, even with a geographically fixed target and an opponent making no attempt to evade interception. Basic countermeasures against interception include frequent changing of radio frequency , polarization , and other transmission characteristics. An intercept aircraft could not get off
2064-523: A possibility, but not France – France itself spies on the US far too aggressively for that." During the 2013 NSA leaks Internet spying scandal, the surveillance agencies of the "Five Eyes" have been accused of intentionally spying on one another's citizens and willingly sharing the collected information with each other, allegedly circumventing laws preventing each agency from spying on its own citizens. The 2013 NSA leaks are not entirely new, but rather, they are
2193-493: A public function "to advise as to the security of codes and cyphers used by all Government departments and to assist in their provision", but also with a secret directive to "study the methods of cypher communications used by foreign powers". GC&CS officially formed on 1 November 1919, and produced its first decrypt on 19 October. By 1940, GC&CS was working on the diplomatic codes and ciphers of 26 countries, tackling over 150 diplomatic cryptosystems. The US Cipher Bureau
2322-401: A radar is operating. Once the radar is known to be in the area, the next step is to find its location. If operators know the probable frequencies of transmissions of interest, they may use a set of receivers, preset to the frequencies of interest. These are the frequency (horizontal axis) versus power (vertical axis) produced at the transmitter, before any filtering of signals that do not add to
2451-456: A report on potential amendments was presented by the Committee on Commonwealth Membership at the 2007 Commonwealth Heads of Government Meeting . New members were not admitted at this meeting, though applications for admission were considered at the 2009 CHOGM . New members must "as a general rule" have a direct constitutional link to an existing member. In most cases, this is due to being
2580-735: A republic in January 1950, it would remain in the Commonwealth and accept the British Sovereign as a "symbol of the free association of its independent member nations and as such the Head of the Commonwealth". Upon hearing this, King George VI told Menon : "So, I've become 'as such'". Some other Commonwealth countries that have since become republics have chosen to leave, whilst others, such as Guyana , Mauritius and Dominica , have remained members. India's inaugural prime minister Jawaharlal Nehru declared on 16 May 1949, shortly following
2709-720: A republic in accordance with the Irish Republic of Ireland Act 1948 ; in doing so, it also formally left the Commonwealth. Whilst Ireland had not actively participated in the Commonwealth since the early 1930s, other dominions wished to become republics without losing Commonwealth ties. The issue came to a head in April 1949 at a Commonwealth prime ministers' meeting in London . Under the London Declaration , as drafted by V. K. Krishna Menon , India agreed, when it became
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#17327728036802838-401: A safe distance from the user of the transmitter. When locations are known, usage patterns may emerge, from which inferences may be drawn. Traffic analysis is the discipline of drawing patterns from information flow among a set of senders and receivers, whether those senders and receivers are designated by location determined through direction finding , by addressee and sender identifications in
2967-404: A sensor is unique. MASINT then becomes more informative, as individual transmitters and antennas may have unique side lobes, unintentional radiation, pulse timing, etc. Network build-up , or analysis of emitters (communication transmitters) in a target region over a sufficient period of time, enables creation of the communications flows of a battlefield. COMINT ( com munications int elligence)
3096-426: A tactical SIGINT requirement, whereas the larger aircraft tend to be assigned strategic/national missions. Before the detailed process of targeting begins, someone has to decide there is a value in collecting information about something. While it would be possible to direct signals intelligence collection at a major sports event, the systems would capture a great deal of noise, news signals, and perhaps announcements in
3225-478: A tank battalion or tank-heavy task force. Another set of transmitters might identify the logistic net for that same unit. An inventory of ELINT sources might identify the medium - and long-range counter-artillery radars in a given area. Signals intelligence units will identify changes in the EOB, which might indicate enemy unit movement, changes in command relationships, and increases or decreases in capability. Using
3354-411: A vehicle. If these are regular reports over a period of time, they might reveal a patrol pattern. Direction-finding and radio frequency MASINT could help confirm that the traffic is not deception. The EOB buildup process is divided as following: Separation of the intercepted spectrum and the signals intercepted from each sensor must take place in an extremely small period of time, in order to separate
3483-578: Is Amplitude comparison . An alternative to tunable directional antennas or large omnidirectional arrays such as the Wullenweber is to measure the time of arrival of the signal at multiple points, using GPS or a similar method to have precise time synchronization. Receivers can be on ground stations, ships, aircraft, or satellites, giving great flexibility. A more accurate approach is Interferometer. Modern anti-radiation missiles can home in on and attack transmitters; military antennas are rarely
3612-417: Is a sub-category of signals intelligence that engages in dealing with messages or voice information derived from the interception of foreign communications. COMINT is commonly referred to as SIGINT, which can cause confusion when talking about the broader intelligence disciplines. The US Joint Chiefs of Staff defines it as "Technical information and intelligence derived from foreign communications by other than
3741-415: Is acquired by a given country. Knowledge of physics and electronic engineering further narrows the problem of what types of equipment might be in use. An intelligence aircraft flying well outside the borders of another country will listen for long-range search radars, not short-range fire control radars that would be used by a mobile air defense. Soldiers scouting the front lines of another army know that
3870-543: Is in the general area of the signal. The owner of the transmitter can assume someone is listening, so might set up tank radios in an area where he wants the other side to believe he has actual tanks. As part of Operation Quicksilver , part of the deception plan for the invasion of Europe at the Battle of Normandy , radio transmissions simulated the headquarters and subordinate units of the fictitious First United States Army Group (FUSAG), commanded by George S. Patton , to make
3999-409: Is not represented. Commonwealth citizens are eligible to apply for British emergency passports . Australia issues Documents of Identity in exceptional circumstances to resident Commonwealth citizens who are unable to obtain valid travel documents from their countries of origin and must travel urgently. The close association amongst Commonwealth countries is reflected in the diplomatic protocols of
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4128-819: Is responsible for the western Pacific and maintains listening posts in the South Island at Waihopai Valley just south-west of Blenheim , and on the North Island at Tangimoana . Europe, European Russia , Middle East, and Hong Kong. The US is focused on the Middle East , Russia, and China, in addition to the Caribbean and Africa . The "Five Eyes" community is part of an extensive alliance of Western countries sharing signals intelligence with each other. These allied countries include NATO members, other European countries such as Sweden, and allies in
4257-520: Is symbolic, representing the free association of independent members, the majority of which (36) are republics , and five have monarchs of different royal houses ( Brunei , Eswatini , Lesotho , Malaysia and Tonga ). The main decision-making forum of the organisation is the biennial Commonwealth Heads of Government Meeting (CHOGM), where Commonwealth Heads of Government , including (amongst others) prime ministers and presidents, assemble for several days to discuss matters of mutual interest. CHOGM
4386-692: Is the supreme court of 14 Commonwealth countries, including the Cook Islands and Niue which are under the Realm of New Zealand (though New Zealand itself does not make appeals to the Privy Council). Commonwealth nationals are eligible for appointment to the High Court of Fiji , with the Court relying on judges from other Commonwealth nations. Commonwealth citizens are eligible to serve in
4515-433: Is the act and field of intelligence-gathering by interception of signals , whether communications between people ( communications intelligence —abbreviated to COMINT ) or from electronic signals not directly used in communication ( electronic intelligence —abbreviated to ELINT ). As classified and sensitive information is usually encrypted , signals intelligence may necessarily involve cryptanalysis (to decipher
4644-511: Is the successor to the Commonwealth Prime Ministers Meetings and, earlier, the Imperial Conferences and Colonial Conferences, dating back to 1887. There are also regular meetings of finance ministers, law ministers, health ministers and others. Members in arrears, as special members before them, are not invited to send representatives to either ministerial meetings or CHOGMs. The head of government hosting
4773-464: The 1926 Imperial Conference , the United Kingdom and its dominions agreed they were "equal in status, in no way subordinate one to another in any aspect of their domestic or external affairs, though united by common allegiance to the Crown, and freely associated as members of the British Commonwealth of Nations". The term ' Commonwealth ' was officially adopted to describe the community. These aspects to
4902-640: The British Armed Forces . According to the British Army , "Commonwealth soldiers are, and always will be, an important and valued part of the fabric of the British Army." Thousands of potential Commonwealth recruits have been turned away due to a lack of eligible vacancies. Gurkha soldiers from Nepal , though it is not a Commonwealth country, have long fought alongside British and Commonwealth troops. They continue to be recruited by
5031-617: The British Commonwealth . The Head of the Commonwealth is Charles III . He is king of 15 member states, known as the Commonwealth realms , whilst 36 other members are republics , and five others have different monarchs. Although he became head upon the death of his mother, Elizabeth II , the position is not technically hereditary. Member states have no legal obligations to one another, though some have institutional links to other Commonwealth nations. Citizenship of
5160-668: The British Commonwealth Occupation Force in post-war Japan. After the Second World War ended, the British Empire was gradually dismantled. Most of its components have become independent countries, whether Commonwealth realms or republics, and members of the Commonwealth. There remain the 14 mainly self-governing British overseas territories which retain some political association with the United Kingdom. In April 1949, following
5289-526: The Confederation of Canada on 1 July 1867 had been the birth of the "first independent country within the British Empire". She declared: "So, it also marks the beginning of that free association of independent states which is now known as the Commonwealth of Nations." As long ago as 18 January 1884 Lord Rosebery , while visiting Adelaide , South Australia , had described the changing British Empire, as some of its colonies became more independent , as
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5418-769: The Harare Declaration was issued, dedicating the leaders to applying the Singapore principles to the completion of decolonisation, the end of the Cold War , and the end of apartheid in South Africa. The mechanisms by which these principles would be applied were created, and the manner clarified, by the 1995 Millbrook Commonwealth Action Programme , which created the Commonwealth Ministerial Action Group (CMAG), which has
5547-525: The High Court case of Sue v Hill , the United Kingdom was held to be a "foreign power". Similarly, in Nolan v Minister for Immigration and Ethnic Affairs , the nationals of other Commonwealth realms were held to be "aliens". Commonwealth citizens may receive consular assistance from other Commonwealth countries. In particular, British embassies and consulates may provide assistance to Commonwealth nationals in non-Commonwealth countries if their own country
5676-507: The London Declaration , the word "British" was dropped from the title of the Commonwealth to reflect its changing nature. Burma (Myanmar since 1989) and Aden (now part of Yemen) are the only states that were British colonies at the time of the war not to have joined the Commonwealth upon independence. Former British protectorates and mandates that did not become members of the Commonwealth are Egypt (independent in 1922), Iraq (1932), Transjordan (1946), Palestine (part of which became
5805-533: The North Sea . The battle of Dogger Bank was won in no small part due to the intercepts that allowed the Navy to position its ships in the right place. It played a vital role in subsequent naval clashes, including at the Battle of Jutland as the British fleet was sent out to intercept them. The direction-finding capability allowed for the tracking and location of German ships, submarines, and Zeppelins . The system
5934-743: The Paris Peace Conference of 1919 , attended by delegates from the Dominions as well as the United Kingdom. The term first received imperial statutory recognition in the Anglo-Irish Treaty of 1921, when the term British Commonwealth of Nations was substituted for British Empire in the wording of the oath taken by members of parliament of the Irish Free State . In the Balfour Declaration at
6063-689: The Philippines , and several Nordic countries , also joined the UKUSA community in associate capacities, although they are not part of the mechanism for automatic sharing of intelligence that exists between the Five Eyes. Much of the sharing of information is performed via the ultra-sensitive STONEGHOST network, which has been claimed to contain "some of the Western world's most closely guarded secrets". Besides laying down rules for intelligence sharing,
6192-547: The United Nations General Assembly by the secretariat as an observer . The secretariat organises Commonwealth summits, meetings of ministers, consultative meetings and technical discussions; it assists policy development and provides policy advice, and facilitates multilateral communication amongst the member governments. It also provides technical assistance to help governments in the social and economic development of their countries and in support of
6321-532: The post office and Marconi stations, grew rapidly to the point where the British could intercept almost all official German messages. The German fleet was in the habit each day of wirelessing the exact position of each ship and giving regular position reports when at sea. It was possible to build up a precise picture of the normal operation of the High Seas Fleet , to infer from the routes they chose where defensive minefields had been placed and where it
6450-492: The " Five Eyes " community: Although precise assignments are classified, it is generally known that each member of the UKUSA alliance takes lead responsibility for intelligence collection and analysis in different parts of the globe. The Five Eyes (often abbreviated as FVEY ) are an intelligence alliance comprising Australia, Canada, New Zealand, the United Kingdom and the United States. These countries are bound by
6579-483: The "second party" members (that is, the Five Eyes themselves), "third party" partners are not automatically exempt from intelligence targeting. According to an internal NSA document leaked by Snowden, "We (the NSA) can, and often do, target the signals of most 3rd party foreign partners." The Five Eyes are cooperating with various 3rd Party countries in at least two groups: Germany is reportedly interested in moving closer to
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#17327728036806708-605: The British Army ( Brigade of Gurkhas ), Indian Army ( Gorkha regiments ) and Royal Brunei Armed Forces ( Gurkha Reserve Unit ), as well the Gurkha Contingent of the Singapore Police Force . Most members of Brunei's Gurkha Reserve Unit are veterans from the British Army and Singaporean police. The criteria for membership of the Commonwealth of Nations have developed over time from a series of separate documents. The Statute of Westminster 1931 , as
6837-549: The British forces in World War II came under the code name " Ultra ", managed from Government Code and Cypher School at Bletchley Park . Properly used, the German Enigma and Lorenz ciphers should have been virtually unbreakable, but flaws in German cryptographic procedures, and poor discipline among the personnel carrying them out, created vulnerabilities which made Bletchley's attacks feasible. Bletchley's work
6966-609: The British were the only people transmitting at the time, the British did not need special interpretation of the signals that they were. The birth of signals intelligence in a modern sense dates from the Russo-Japanese War of 1904–1905. As the Russian fleet prepared for conflict with Japan in 1904, the British ship HMS Diana stationed in the Suez Canal intercepted Russian naval wireless signals being sent out for
7095-451: The CHOGM is called the chair-in-office (CIO) and retains the position until the following CHOGM. The Commonwealth Secretariat , established in 1965, is the main intergovernmental agency of the Commonwealth, facilitating consultation and co-operation amongst member governments and countries. It is responsible to member governments collectively. The Commonwealth of Nations is represented in
7224-548: The COMINT gathering method enables the intelligence officer to produce an electronic order of battle by traffic analysis and content analysis among several enemy units. For example, if the following messages were intercepted: This sequence shows that there are two units in the battlefield, unit 1 is mobile, while unit 2 is in a higher hierarchical level, perhaps a command post. One can also understand that unit 1 moved from one point to another which are distant from each 20 minutes with
7353-548: The CSIS and other Canadian federal agencies are illegally enlisting US and British allies in global surveillance dragnets, while keeping domestic federal courts in the dark. The following documents were jointly released by the NSA and the GCHQ in 2010: The following documents were leaked by Edward Snowden during the course of the 2013 Global surveillance disclosure : Signals intelligence Signals intelligence ( SIGINT )
7482-471: The Commonwealth countries. For example, when engaging bilaterally with one another, Commonwealth governments exchange high commissioners instead of ambassadors . Further institutional connections exist between Commonwealth countries. These include, between some, connections to other parts of the Commonwealth in their judicial and military institutions. The Judicial Committee of the Privy Council
7611-413: The Commonwealth had a population of 2.5 billion. The Commonwealth is the largest association of ' Third World ' or ' Global South ' countries. With a population of 1.4 billion, India is the most populous Commonwealth country. Tuvalu is the smallest member, with about 12,000 people. The status of "member in arrears" is used to denote those that are in arrears in paying subscription dues. The status
7740-581: The Commonwealth's fundamental political values. The secretariat is headed by the Commonwealth secretary-general , who is elected by the Commonwealth heads of government for no more than two four-year terms. The secretary-general and two deputy secretaries-general direct the divisions of the Secretariat. The present secretary-general is Patricia Scotland, Baroness Scotland of Asthal , from Dominica, who took office on 1 April 2016, succeeding Kamalesh Sharma of India (2008–2016). The first secretary-general
7869-569: The Declaration, during the Constituent Assembly Debates that: We join the Commonwealth obviously because we think it is beneficial to us and to certain causes in the world that we wish to advance. The other countries of the Commonwealth want us to remain there because they think it is beneficial to them. It is mutually understood that it is to the advantage of the nations in the Commonwealth and therefore they join. At
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#17327728036807998-438: The German defense think that the main invasion was to come at another location. In like manner, fake radio transmissions from Japanese aircraft carriers, before the Battle of Pearl Harbor , were made from Japanese local waters, while the attacking ships moved under strict radio silence. Traffic analysis need not focus on human communications. For example, a sequence of a radar signal, followed by an exchange of targeting data and
8127-515: The Germans to communicate exclusively via either (A) a telegraph line that connected through the British network and thus could be tapped; or (B) through radio which the British could then intercept. Rear Admiral Henry Oliver appointed Sir Alfred Ewing to establish an interception and decryption service at the Admiralty ; Room 40 . An interception service known as 'Y' service , together with
8256-407: The NSA is paying GCHQ for its services, with at least £100 million of payments made between 2010 and 2013. On 11 September 2013, The Guardian released a leaked document provided by Edward Snowden which reveals a similar agreement between the NSA and Israel's Unit 8200 . According to The Sydney Morning Herald , Australia operates clandestine surveillance facilities at its embassies "without
8385-545: The Pacific, in particular Singapore and South Korea . In the 1950s several Nordic countries joined the community as "third party" participants. They were soon followed by Denmark (1954) and West Germany (1955). According to Edward Snowden , the NSA has a "massive body" called the Foreign Affairs Directorate that is responsible for partnering with other Western allies such as Israel . Unlike
8514-634: The State of Israel in 1948), Sudan (1956), British Somaliland (which united with the former Italian Somaliland in 1960 to form the Somali Republic ), Kuwait (1961), Bahrain (1971), Oman (1971), Qatar (1971) and the United Arab Emirates (1971). The post-war Commonwealth was given a fresh mission by Queen Elizabeth II in her Christmas Day 1953 broadcast, in which she envisioned the Commonwealth as "an entirely new conception – built on
8643-669: The Statute of Westminster into the law of South Africa . Commonwealth countries and the Empire were involved in every major theatre of the Second World War . The British Commonwealth Air Training Plan was established for pilots from across the Empire and Dominions, created by the governments of the United Kingdom, Canada, Australia and New Zealand. Troops from Australia, Britain, the British Raj and New Zealand made up
8772-581: The UK (especially in the 1960s and 1970s) to refer to recently decolonised countries, predominantly non- white and developing countries. It was often used in debates regarding immigration from these countries. The United Kingdom and the pre-1945 dominions became informally known as the Old Commonwealth, or more pointedly as the 'white Commonwealth', in reference to what had been known as the 'White Dominions'. On 18 April 1949, Ireland formally became
8901-445: The UK and US resurfaced again during the 2013 mass surveillance disclosures . As described by the news magazine Der Spiegel , this was done to circumvent domestic surveillance regulations: Britain's GCHQ intelligence agency can spy on anyone but British nationals, the NSA can conduct surveillance on anyone but Americans, and Germany's BND ( Bundesnachrichtendienst ) foreign intelligence agency can spy on anyone but Germans. That's how
9030-421: The UKUSA relationship." The existence of the UKUSA Agreement, however, was not publicly revealed until 2005. The contents of the agreement were officially disclosed to the public on 25 June 2010. Four days later, the agreement was described by Time magazine as one of the "most important documents in the history of the Cold War ." In July 2013, as part of the 2013 Edward Snowden revelations , it emerged that
9159-403: The US National Security Agency (NSA) at the beginning of the Cold War . The document was signed on 5 March 1946 by Colonel Patrick Marr-Johnson for the UK's London Signals Intelligence Board and Lieutenant General Hoyt Vandenberg for the US State–Army–Navy Communication Intelligence Board. Although the original agreement states that the exchange would not be "prejudicial to national interests",
9288-577: The United Kingdom's cosmopolitan role in world affairs became increasingly limited, especially with the losses of India and Singapore. Whilst British politicians at first hoped that the Commonwealth would preserve and project British influence, they gradually lost their enthusiasm, argues Krishnan Srinivasan . Early enthusiasm waned as British policies came under fire at Commonwealth meetings. Public opinion became troubled as immigration from non-white member states became large-scale (see also: Commonwealth diaspora ). The term New Commonwealth gained usage in
9417-480: The United Kingdom, have preferential citizenship acquisition or residency policies for Commonwealth citizens. Initially, Commonwealth countries were not considered to be "foreign" to each other as their citizens were British subjects . Citizenship laws have evolved independently in each Commonwealth country. For example, in Australia, for the purpose of considering certain constitutional and legal provisions in
9546-572: The United States often blocked information sharing from Commonwealth countries. The full text of the agreement was released to the public on 25 June 2010. The " Five Eyes " term has its origins as a shorthand for a "AUS/CAN/NZ/UK/US EYES ONLY" classification level. Under the agreement, the GCHQ and the NSA shared intelligence on the Soviet Union , the People's Republic of China , and several Eastern Bloc countries (known as Exotics). The network
9675-453: The actual information is at 800 kHz and 1.2 MHz. Real-world transmitters and receivers usually are directional. In the figure to the left, assume that each display is connected to a spectrum analyzer connected to a directional antenna aimed in the indicated direction. Spread-spectrum communications is an electronic counter-countermeasures (ECCM) technique to defeat looking for particular frequencies. Spectrum analysis can be used in
9804-694: The aftermath of the 1973 Murphy raids on the headquarters of the Australian Security Intelligence Organisation (ASIO), the existence of the UKUSA Agreement was revealed to Australia's Prime Minister Gough Whitlam . After learning about the agreement, Whitlam discovered that Pine Gap , a secret surveillance station close to Alice Springs , Northern Territory , had been operated by the US Central Intelligence Agency (CIA). At
9933-527: The agreement formalized and cemented the " Special Relationship " between the UK and the US. Due to its status as a secret treaty, its existence was not known to the Prime Minister of Australia until 1973, and it was not disclosed to the public until 2005. On 25 June 2010, for the first time in history, the full text of the agreement was publicly released by the United Kingdom and the United States, and can now be viewed online. Shortly after its release,
10062-645: The army in France in 1915. By May 1915, the Admiralty was able to track German submarines crossing the North Sea. Some of these stations also acted as 'Y' stations to collect German messages, but a new section was created within Room 40 to plot the positions of ships from the directional reports. Room 40 played an important role in several naval engagements during the war, notably in detecting major German sorties into
10191-418: The beginning of the modern Commonwealth. Following India's precedent, other nations became republics, or constitutional monarchies with their own monarchs. Whilst some countries retained the same monarch as the United Kingdom, their monarchies developed differently and soon became essentially independent of the British monarchy. The monarch is regarded as a separate legal personality in each realm, even though
10320-506: The broader organizational order of battle . EOB covers both COMINT and ELINT. The Defense Intelligence Agency maintains an EOB by location. The Joint Spectrum Center (JSC) of the Defense Information Systems Agency supplements this location database with five more technical databases: For example, several voice transmitters might be identified as the command net (i.e., top commander and direct reports) in
10449-570: The country sought closer ties with the Anglophone world . Under the formula of the London Declaration , Charles III is the Head of the Commonwealth . However, when the monarch dies, the successor to the crown does not automatically become the new head of the Commonwealth. Despite this, at their meeting in April 2018, Commonwealth leaders agreed that Prince Charles should succeed his mother Elizabeth II as head after her death . The position
10578-419: The country to hold new elections before a full suspension of Commonwealth membership would be considered. Prior to Togo's admission at the 2022 Commonwealth Heads of Government Meeting , Togolese Foreign Minister Robert Dussey said that he expected Commonwealth membership to provide opportunities for Togolese citizens to learn English and access new educational and cultural resources. He also remarked that
10707-446: The decision to target is made, the various interception points need to cooperate, since resources are limited. Knowing what interception equipment to use becomes easier when a target country buys its radars and radios from known manufacturers, or is given them as military aid . National intelligence services keep libraries of devices manufactured by their own country and others, and then use a variety of techniques to learn what equipment
10836-469: The different signals to different transmitters in the battlefield. The complexity of the separation process depends on the complexity of the transmission methods (e.g., hopping or time-division multiple access (TDMA)). By gathering and clustering data from each sensor, the measurements of the direction of signals can be optimized and get much more accurate than the basic measurements of a standard direction finding sensor. By calculating larger samples of
10965-585: The end of the Suez Crisis. The first member to be admitted without having any constitutional link to the British Empire was Mozambique in 1995 following its first democratic elections. Mozambique was a former Portuguese colony . Its entry preceded the Edinburgh Declaration and the current membership guidelines. In 2009, Rwanda became the second country to be admitted to the Commonwealth not to have any constitutional links to Britain. It
11094-511: The exchange of the products of the following operations relating to foreign communications:- — AMENDMENT NO. 4 TO THE APPENDICES TO THE UKUSA AGREEMENT (THIRD EDITION) , page 5 The agreement originated from a ten-page 1943 British–US Communication Intelligence Agreement, BRUSA . The UKUSA Agreement connected the signal intercept networks of the UK Government Communications Headquarters (GCHQ) and
11223-549: The former rules were consolidated into a single document. These requirements are that members must accept and comply with the Harare principles , be fully sovereign states , recognise King Charles III as head of the Commonwealth, accept the English language as the means of Commonwealth communication, and respect the wishes of the general population with regard to Commonwealth membership. These requirements had undergone review, and
11352-512: The fronts, that we won the war!" Supreme Allied Commander, Dwight D. Eisenhower , at the end of the war, described Ultra as having been "decisive" to Allied victory. Official historian of British Intelligence in World War II Sir Harry Hinsley argued that Ultra shortened the war "by not less than two years and probably by four years"; and that, in the absence of Ultra, it is uncertain how the war would have ended. At
11481-420: The ground if it had to carry antennas and receivers for every possible frequency and signal type to deal with such countermeasures. Second, locating the transmitter's position is usually part of SIGINT. Triangulation and more sophisticated radio location techniques, such as time of arrival methods, require multiple receiving points at different locations. These receivers send location-relevant information to
11610-621: The height of the 1975 Australian constitutional crisis , the use and control of Pine Gap by the CIA was strongly opposed by Whitlam, who fired the chief of the ASIO before being dismissed as prime minister. The existence of several intelligence agencies of the Five Eyes was not revealed until the following years: In 1999, the Australian government acknowledged that it "does co-operate with counterpart signals intelligence organisations overseas under
11739-479: The highest qualities of the Spirit of Man: friendship, loyalty, and the desire for freedom and peace". However, the British treasury was so weak that it could not operate independently of the United States. Furthermore, the loss of defence and financial roles undermined Joseph Chamberlain's early 20th-century vision of a world empire that could combine Imperial preference, mutual defence and social growth. In addition,
11868-500: The importance of interception and decryption firmly established by the wartime experience, countries established permanent agencies dedicated to this task in the interwar period. In 1919, the British Cabinet's Secret Service Committee, chaired by Lord Curzon , recommended that a peace-time codebreaking agency should be created. The Government Code and Cypher School (GC&CS) was the first peace-time codebreaking agency, with
11997-496: The individual countries being abbreviated as AUS, CAN, NZL, GBR, and USA, respectively. Emerging from an informal agreement related to the 1941 Atlantic Charter , the secret treaty was renewed with the passage of the 1943 BRUSA Agreement , before being officially enacted on 5 March 1946 by the United Kingdom and the United States. In the following years, it was extended to encompass Canada, Australia, and New Zealand. Other countries, known as "third parties", such as West Germany ,
12126-448: The information being transmitted. Received energy on a particular frequency may start a recorder, and alert a human to listen to the signals if they are intelligible (i.e., COMINT). If the frequency is not known, the operators may look for power on primary or sideband frequencies using a spectrum analyzer . Information from the spectrum analyzer is then used to tune receivers to signals of interest. For example, in this simplified spectrum,
12255-405: The inner circle: an internal GCHQ document from 2009 said that the "Germans were a little grumpy at not being invited to join the 9-Eyes group." Germany may even wish to join Five Eyes. Referring to Five Eyes, former French President François Hollande has said that his country is "not within that framework and we don't intend to join." According to a former top US official, "Germany joining would be
12384-537: The intended recipients". Commonwealth of Nations The Commonwealth of Nations , often simply referred to as the Commonwealth , is an international association of 56 member states , the vast majority of which are former territories of the British Empire from which it developed. They are connected through their use of the English language and historical-cultural ties. The chief institutions of
12513-527: The knowledge of most Australian diplomats". These facilities are part of an international espionage program known as STATEROOM . Although the UKUSA alliance is often associated with the ECHELON system, processed intelligence is reliant on multiple sources of information and the intelligence shared is not restricted to signals intelligence . The following table provides an overview of the government agencies involved and their respective responsibilities within
12642-541: The late 1990s, PSTS, constantly sends out information that helps the interceptors properly aim their antennas and tune their receivers. Larger intercept aircraft, such as the EP-3 or RC-135 , have the on-board capability to do some target analysis and planning, but others, such as the RC-12 GUARDRAIL , are completely under ground direction. GUARDRAIL aircraft are fairly small and usually work in units of three to cover
12771-564: The message need not be known to infer the movement. There is an art as well as science of traffic analysis. Expert analysts develop a sense for what is real and what is deceptive. Harry Kidder , for example, was one of the star cryptanalysts of World War II, a star hidden behind the secret curtain of SIGINT. Generating an electronic order of battle (EOB) requires identifying SIGINT emitters in an area of interest, determining their geographic location or range of mobility, characterizing their signals, and, where possible, determining their role in
12900-410: The message, or even MASINT techniques for "fingerprinting" transmitters or operators. Message content other than the sender and receiver is not necessary to do traffic analysis, although more information can be helpful. For example, if a certain type of radio is known to be used only by tank units, even if the position is not precisely determined by direction finding, it may be assumed that a tank unit
13029-581: The messages). Traffic analysis —the study of who is signaling to whom and in what quantity—is also used to integrate information, and it may complement cryptanalysis. Electronic interceptions appeared as early as 1900, during the Boer War of 1899–1902. The British Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s, and the British Army used some limited wireless signalling. The Boers captured some wireless sets and used them to make vital transmissions. Since
13158-634: The mobilization of the fleet, for the first time in history. Over the course of the First World War , a new method of signals intelligence reached maturity. Russia’s failure to properly protect its communications fatally compromised the Russian Army ’s advance early in World War I and led to their disastrous defeat by the Germans under Ludendorff and Hindenburg at the Battle of Tannenberg . In 1918, French intercept personnel captured
13287-494: The multilateral UKUSA Agreement, a treaty for joint cooperation in signals intelligence . Australia monitors South Asia and East Asia . Canada's geographical proximity to the Soviet Union provided considerable eavesdropping advantages during the Cold War . Canada continues to monitor the Russian and Chinese interior while managing intelligence assets in Latin America . In addition to Southeast Asia , New Zealand
13416-609: The organisation are the Commonwealth Secretariat , which focuses on intergovernmental relations, and the Commonwealth Foundation , which focuses on non-governmental relations between member nations. Numerous organisations are associated with and operate within the Commonwealth. The Commonwealth dates back to the first half of the 20th century with the decolonisation of the British Empire through increased self-governance of its territories. It
13545-461: The other side will be using radios that must be portable and not have huge antennas. Even if a signal is human communications (e.g., a radio), the intelligence collection specialists have to know it exists. If the targeting function described above learns that a country has a radar that operates in a certain frequency range, the first step is to use a sensitive receiver, with one or more antennas that listen in every direction, to find an area where such
13674-612: The power to rule on whether members meet the requirements for membership under the Harare Declaration. Also in 1995, an Inter-Governmental Group was created to finalise and codify the full requirements for membership. Upon reporting in 1997, as adopted under the Edinburgh Declaration , the Inter-Governmental Group ruled that any future members would "as a rule" have to have a direct constitutional link with an existing member. In addition to this new rule,
13803-617: The relationship were formalised by the Statute of Westminster in 1931, which applied to Canada without the need for ratification, but Australia, New Zealand and Newfoundland had to ratify the statute for it to take effect. Newfoundland never did as due to economic hardship and the need for financial assistance from London, Newfoundland voluntarily accepted the suspension of self-government in 1934 and governance reverted to direct control from London. Newfoundland later joined Canada as its tenth province in 1949. Australia and New Zealand ratified
13932-494: The reputation of the Commonwealth and confirm the opinion of many people and civic organisations that the leaders of its governments do not really care for democracy and human rights, and that its periodic, solemn declarations are merely hot air." In 2022, the former French territories of Togo and Gabon joined the Commonwealth. The Commonwealth comprises 56 countries, across all inhabited continents. 33 members are small states, including 25 small island developing states. In 2023,
14061-526: The same person is monarch of each realm. At a time when Germany and France, together with Belgium, Italy, Luxembourg, and the Netherlands, were planning what later became the European Union , and newly independent African countries were joining the Commonwealth, new ideas were floated to prevent the United Kingdom from becoming isolated in economic affairs. British trade with the Commonwealth
14190-410: The same time, it is made perfectly clear that each country is completely free to go its own way; it may be that they may go, sometimes go so far as to break away from the Commonwealth...Otherwise, apart from breaking the evil parts of the association, it is better to keep a co-operative association going which may do good in this world rather than break it. The London Declaration is often seen as marking
14319-417: The sensor's output data in near real-time, together with historical information of signals, better results are achieved. Data fusion correlates data samples from different frequencies from the same sensor, "same" being confirmed by direction finding or radiofrequency MASINT. If an emitter is mobile, direction finding, other than discovering a repetitive pattern of movement, is of limited value in determining if
14448-572: The seven-page UKUSA Agreement was recognized by Time magazine as one of the Cold War 's most important documents, with immense historical significance. The global surveillance disclosure by Edward Snowden has shown that the intelligence-sharing activities between the First World allies of the Cold War are rapidly shifting into the digital realm of the Internet . The parties agree to
14577-509: The signal direction, which may be too slow when the signal is of short duration. One alternative is the Wullenweber array technique. In this method, several concentric rings of antenna elements simultaneously receive the signal, so that the best bearing will ideally be clearly on a single antenna or a small set. Wullenweber arrays for high-frequency signals are enormous, referred to as "elephant cages" by their users. A more advance approach
14706-451: The stadium. If, however, an anti-terrorist organization believed that a small group would be trying to coordinate their efforts using short-range unlicensed radios at the event, SIGINT targeting of radios of that type would be reasonable. Targeting would not know where in the stadium the radios might be located or the exact frequency they are using; those are the functions of subsequent steps such as signal detection and direction finding. Once
14835-709: The statute in 1942 and 1947 respectively. Although the Union of South Africa was not amongst the Dominions that needed to adopt the Statute of Westminster for it to take effect, two laws — the Status of the Union Act, 1934 , and the Royal Executive Functions and Seals Act, 1934 — were passed by the Parliament of South Africa to confirm South Africa's status as a sovereign state, and to incorporate
14964-509: The story of Operation SALAM , László Almásy 's mission across the desert behind Allied lines in 1942. Prior to the Normandy landings on D-Day in June 1944, the Allies knew the locations of all but two of Germany's fifty-eight Western Front divisions. Winston Churchill was reported to have told King George VI : "It is thanks to the secret weapon of General Menzies , put into use on all
15093-535: The time of the Suez Crisis in 1956, and in the face of colonial unrest and international tensions, French prime minister Guy Mollet proposed to British prime minister Anthony Eden that their two countries be joined in a "union" . When that proposal was turned down, Mollet suggested that France join the Commonwealth, possibly with "a common citizenship arrangement on the Irish basis ". These ideas faded away with
15222-418: Was Arnold Smith of Canada (1965–1975), followed by Sir Shridath Ramphal of Guyana (1975–1990), Chief Emeka Anyaoku of Nigeria (1990–1999), and Don McKinnon of New Zealand (2000–2008). Some member states grant particular rights to Commonwealth citizens. The United Kingdom and several others, mostly in the Caribbean , grant the right to vote to resident Commonwealth citizens. Some countries, including
15351-586: Was a Belgian trust territory that had been a district of German East Africa until World War I . In 2022, Togo , a former French mandate territory, and Gabon , a former French colony, joined the Commonwealth, despite never having been under British rule. Gabon was partially suspended from the Commonwealth in September 2023 following a military coup , with two years given by the Commonwealth Ministerial Action Group for
15480-611: Was considered an "exceptional circumstance" by the Commonwealth Secretariat . Rwanda was permitted to join despite the Commonwealth Human Rights Initiative (CHRI) finding that "the state of governance and human rights in Rwanda does not satisfy Commonwealth standards", and that it "does not therefore qualify for admission". CHRI commented that: "It does not make sense to admit a state that already does not satisfy Commonwealth standards. This would tarnish
15609-686: Was essential to defeating the U-boats in the Battle of the Atlantic , and to the British naval victories in the Battle of Cape Matapan and the Battle of North Cape . In 1941, Ultra exerted a powerful effect on the North African desert campaign against German forces under General Erwin Rommel . General Sir Claude Auchinleck wrote that were it not for Ultra, "Rommel would have certainly got through to Cairo". Ultra decrypts featured prominently in
15738-558: Was established in 1919 and achieved some success at the Washington Naval Conference in 1921, through cryptanalysis by Herbert Yardley . Secretary of War Henry L. Stimson closed the US Cipher Bureau in 1929 with the words "Gentlemen do not read each other's mail." The use of SIGINT had even greater implications during World War II . The combined effort of intercepts and cryptanalysis for the whole of
15867-473: Was expanded in the 1960s into the Echelon collection and analysis network. The treaty was extended to include Canada (1948), Australia (1956) and New Zealand (1956). In 1955, the agreement was updated to designate Canada, Australia and New Zealand as "UKUSA-collaborating Commonwealth countries". Other countries that joined as "third parties" were Norway (1952), Denmark (1954) and West Germany (1955). In
15996-427: Was four times larger than its trade with Europe. In 1956 and 1957, the British government, under Prime Minister Anthony Eden , considered a "Plan G" to create a European free trade zone whilst also protecting the favoured status of the Commonwealth. The United Kingdom also considered inviting Scandinavian and other European countries to join the Commonwealth, so that it would become a major economic common market. At
16125-442: Was originally created as the British Commonwealth of Nations through the Balfour Declaration at the 1926 Imperial Conference , and formalised by the United Kingdom through the Statute of Westminster in 1931. The current Commonwealth of Nations was formally constituted by the London Declaration in 1949, which modernised the community and established the member states as "free and equal". It continues to be known colloquially as
16254-424: Was originally known as " special membership ", but was renamed on the Committee on Commonwealth Membership 's recommendation. There are currently no members in arrears. The most recent member in arrears, Nauru, returned to full membership in June 2011. Nauru had alternated between special and full membership since joining the Commonwealth, depending on its financial situation. In 2019, the Commonwealth members had
16383-494: Was safe for ships to operate. Whenever a change to the normal pattern was seen, it immediately signalled that some operation was about to take place, and a warning could be given. Detailed information about submarine movements was also available. The use of radio-receiving equipment to pinpoint the location of any single transmitter was also developed during the war. Captain H.J. Round , working for Marconi , began carrying out experiments with direction-finding radio equipment for
16512-592: Was set out in 1961, when it was decided that respect for racial equality would be a requirement for membership, leading directly to the withdrawal of South Africa's re-application (which they were required to make under the formula of the London Declaration upon becoming a republic). The 14 points of the 1971 Singapore Declaration dedicated all members to the principles of world peace , liberty , human rights , equality , and free trade . These criteria were unenforceable for two decades, until, in 1991,
16641-690: Was so successful that by the end of the war, over 80 million words, comprising the totality of German wireless transmission over the course of the war, had been intercepted by the operators of the Y-stations and decrypted. However, its most astonishing success was in decrypting the Zimmermann Telegram , a telegram from the German Foreign Office sent via Washington to its ambassador Heinrich von Eckardt in Mexico. With
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